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– TABLE
OF
CONTENTS
–
Adjustment
Procedures
. . . . . . . . . . . . . . . . . . . ...1
Test Procedures
and Troubleshooting
. . . . . . . . . .
4–ICI
Specifications
. . . . . . . . . . . . . . . . . . . . . . . . . ...2
Disassembly
Instructions
. . . . . . . . . . . . . . . . .
11-14
Power Output
Measurement
. . . . . . . . . . . . . . . . . . .
2
Exploded
View
and Parts List . . . . . . . . . . . . . .
15-2(J
Precautions
and Repair
Service Tips
. . . . . . . . . . . . . .
2
Overall
Circuit
Diagram
. . . . . . . . . . . . . . . . . . . . .
21
Circuit
Diagram
. . . . . . . . . . . . . . . . . . . . . . . . ...3
CAUTION
MICROWAVE
RADIATION
PERSONNEL
SHOULD
NOT
BE EXPOSED
TO THE
MICROWAVE
ENERGY
WHICH
MAY
RADIATE
FROM
THE
MAGNETRON
OR
OTHER
MICRO-
WAVE
GENERATING
DEVICE
IF
IT
IS impro-
perly
USED
OR CONNECTED.
ALL
INPUT
AND
OUTPUT
MICROWAVE
CONNECTIONS,
WAVE-
GUIDES,
FLANGES,
AND
GASKETS
MUST
BE
SECURE.
NEVER
OPERATE
THE
DEVICE
WITH-
OUT
A
MICROWAVE
ENERGY
ABSORBING
LOAD
ATTACHED.
NEVER
LOOK
INTO
AN
OPEN
WAVEGUIDE
OR
ANTENNA
WHILE
THE
DEVICE
IS ENERGIZED.
1. ADJUSTMENT
PROCEDURES
TO
AVOID
POSSIBLE
EXPOSURE
TO MICROWAVE
ENERGY
LEAKAGE,
THE
FOLLOWING
ADJUST-
MENT
OF THE
INTERLOCK
SWITCHES
SHOULD
BE
MADE
ONLY
BY AUTHORIZED
SERVICE
PERSON-
NEL.
PRIMARY
INTERLOCK
SWITCH,
INTERLOCK
MONITOR
SWITCH
AND
DOOR
SENSING
SWITCH
ADJUSTMENT
(Figure
1)
(1)
(2)
(3)
(4)
(5)
(6)
Loosen 2 screws securing the lever stopper.
Adjust
the lever stopper
position
so that it is pushed
forward
and pull backward
until there is about zero
gap belween
the latch
lever and the switch body on
the primary
interlock
switch
and at the same time
there
is about
zero gap between
the door latch and
the switch
body
on the door
sensing switch
when
the door latch is securely
locked.
Tighten
the lever stopper
screws securely.
Make
sure the interlock
monitor
switch
closes after
the primary
interlock
switch
opens when the door
is opened
very
slowly,
according
to "CHECKOUT
PROCEDURE
FOR SWITCHES"
on page 6.
Make
sure
the
interlock
monitor
switch
opens
before
the primary
interlock
switch closes when the
door
is closed
very
slowly,
according
to "CHECK-
OUT
PROCEDURE
FOR
SWITCHES"
on page 6.
Make
sure the microwave
enrgy leakage is below the
limit
of the regulation
(5 mW/cm*
) when measured
with
a detector.
(A//
made
for
minimum
readings. )
service adjustments
must
be
micro wave
energy
leakage
NOTE:
If the interlock
monitor
circuit
operates and at
the
same
time
the
fuse blows
with
the door
opened,
be sure to replace
the control
circuit
board
because
relay
2 on the control
circuit
board,
the door sensing switch
and the electric
circuit
related
on
the
door
sensing
switch,
which
act
as
Secondary
Interlock
Switch.
Door
Latch
/
-----
Stopper
I
Screws
Door
Sensing
Switch
Interlock
Monitor
Switch
/"
Latch
Lever
Primary
Interlock
Switch
Figure
1
–l–
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